3-(2-thienyl)-5-(trifluoromethyl)isoxazole

3-(2-噻吩基)-5-(三氟甲基)异噁唑

Also known as: 3-(thien-2-yl)-5-(trifluoromethyl)isoxazole, 3-(Thiophen-2-yl)-5-(trifluoromethyl)isoxazole, 3-thiophen-2-yl-5-(trifluoromethyl)-1,2-oxazole, Isoxazole, 3-(2-thienyl)-5-(trifluoromethyl)-, BUTTPARK 37\04-07

3-(2-thienyl)-5-(trifluoromethyl)isoxazole (CAS 175203-89-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H4F3NOS and a molecular weight of 219.18400 g/mol. It is also known as 3-(thien-2-yl)-5-(trifluoromethyl)isoxazole, 3-(Thiophen-2-yl)-5-(trifluoromethyl)isoxazole and 3-thiophen-2-yl-5-(trifluoromethyl)-1,2-oxazole. Key properties include a melting point of 57-59°C, a boiling point of 306.5ºC at 760 mmHg, a density of 1.3g/cm3 and a flash point of 139.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175203-89-1
Jingsj CID
J-1101946-2
Molecular Formula
C8H4F3NOS
Chinese Name
3-(2-噻吩基)-5-(三氟甲基)异噁唑
Molecular Weight
219.18400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point57-59°C
Boiling Point306.5ºC at 760 mmHg
Density1.3g/cm3
Flash Point139.1ºC

Frequently Asked Questions

What is the CAS number of 3-(2-thienyl)-5-(trifluoromethyl)isoxazole?

The CAS number of 3-(2-thienyl)-5-(trifluoromethyl)isoxazole is 175203-89-1.

What are the molecular formula and molecular weight of 3-(2-thienyl)-5-(trifluoromethyl)isoxazole?

3-(2-thienyl)-5-(trifluoromethyl)isoxazole has molecular formula C8H4F3NOS and molecular weight 219.18400 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-(2-thienyl)-5-(trifluoromethyl)isoxazole (CAS 175203-89-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101946-2 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.